Given the following schema:
Catalog(sid, pid, price) (Line under sid and pid)
Suppliers(sid, sname, phonenum) (Line...
Given the following schema:
Catalog(sid, pid, price) (Line under sid and pid)
Suppliers(sid, sname, phonenum) (Line under sid)
Parts(pid, pname, color) (Line under pid)
Write the following queries in Relational Algebra: “Find names
of suppliers who supply a blue part that costs less than 120
dollars and a yellow part that costs more than 150 dollars
SQL Data: you can just copy paste it into mysql to.
CREATE DATABASE University;USE University;
CREATE...
SQL Data: you can just copy paste it into mysql to.
CREATE DATABASE University;USE University;
CREATE TABLE Student ( sid INT PRIMARY
KEY, name VARCHAR(20) NOT NULL, address
VARCHAR(20) NOT NULL, major CHAR(2));
CREATE TABLE Professor ( pid INT PRIMARY
KEY, name VARCHAR(20) NOT NULL, department
VARCHAR(10) NOT NULL);
CREATE TABLE Course ( cid INT PRIMARY
KEY, title VARCHAR(20) NOT NULL
UNIQUE, credits INT NOT NULL, area VARCHAR(5)
NOT NULL);
CREATE TABLE Transcript ( sid INT, cid
INT, pid INT, semester
VARCHAR(9), year YEAR, grade CHAR(1) NOT
NULL, PRIMARY KEY (sid, cid, semester,
year), FOREIGN KEY (sid) REFERENCES Student...
Using the program below, identify the values of pid at lines A,
B, C, and D....
Using the program below, identify the values of pid at lines A,
B, C, and D. (Assume that the actual pids of the parent and child
are 2600 and 2603, respectively.)
#include <sys/types.h>
#include <stdio.h>
#include <unistd.h>
int main()
{
pid_t pid, pid1;
/* fork a child process */
pid = fork();
if (pid lt; 0) { /* error occurred */
fprintf(stderr, "Fork Failed");
return 1;
}
else if (pid == 0) { /* child process */
pid1 = getpid();
...
MySQL
I have the following tables:
Students(sid,first_name,last_name,birthday,major,zipcode)
Students_Courses(sid,cid,year,semester,grade)
Courses(cid,name,credits)
use Students_Courses table to find the student...
MySQL
I have the following tables:
Students(sid,first_name,last_name,birthday,major,zipcode)
Students_Courses(sid,cid,year,semester,grade)
Courses(cid,name,credits)
use Students_Courses table to find the student sid and course
cid for whom took the same course more than one time.
can you help me with my query
select first_name,last_name,name
from Students s, Courses c
where s.sid,c.cid,ct in
( select sid,cid,count(*) from
Students_Courses group by sid,cid having count(*) > 1);
Sid, Tony and Cassie all run their own businesses, which
exclusively make exempt, zero rated and...
Sid, Tony and Cassie all run their own businesses, which
exclusively make exempt, zero rated and standard rated supplies
respectively.
Required:
Who can reclaim input VAT?
and explain why
Sid and Tony
Tony and Cassie
Sid and Cassie
Cassie only.